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The first used half sandwich ruthenium(II) complexes bearing benzimidazole moiety forN-alkylation of amines with alcohols

Authors
Journal
Journal of Organometallic Chemistry
0022-328X
Publisher
Elsevier
Publication Date
Volume
755
Identifiers
DOI: 10.1016/j.jorganchem.2014.01.007
Keywords
  • Half Sandwich Ruthenium(Ii) Complex
  • N-Substituted Benzimidazole
  • N-Alkylation
  • Borrowing Hydrogen Methodology
  • Secondary Amine

Abstract

Abstract Half sandwich ruthenium(II) complexes were synthesized from [RuCl2(η6-p-cymene)]2 and N-substituted benzimidazole. All new compounds were characterized by elemental analysis, 1H NMR, 13C NMR, and IR spectroscopy. Aminoarenes were readily converted into secondary amines by the reaction at 150 °C with benzyl alcohol and in the presence of a catalytic amount of novel ruthenium complexes. All of [RuCl2(η6-p-cymene)(N-substituted benzimidazole)] complexes were the most effective catalyst for N-alklyation reaction using borrowing hydrogen methodology.

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